XBT_PUBLIC_DATA( MPI_Comm ) MPI_COMM_WORLD;
#define MPI_COMM_SELF smpi_process_comm_self()
-struct s_smpi_mpi_request;
-typedef struct s_smpi_mpi_request *MPI_Request;
+typedef SMPI_Request *MPI_Request;
#define MPI_REQUEST_NULL ((MPI_Request)NULL)
#define MPI_FORTRAN_REQUEST_NULL -1